• Senior Information System Security

    ManTech (Quantico, VA)
    **MANTECH** seeks a motivated, career and customer-oriented ** Senior Information System Security Engineer (ISSE)** to join our team in **Quantico, VA.** ... system components as needed. + Design, develop, and implement network security measures that provide confidentiality, integrity, availability, authentication,… more
    ManTech (11/12/25)
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  • Senior Security Engineer

    CoStar Realty Information, Inc. (Arlington, VA)
    Senior Security Engineer Job Description **Overview** CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate ... section grows, so will the tools and the ** Senior Security Engineer ** will be...response functions and reporting of findings + Review technical security posture ( network , application, database) for existing… more
    CoStar Realty Information, Inc. (10/24/25)
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  • Cleared Senior Information Systems…

    Virtual Service Operations (Lorton, VA)
    Cleared Senior Information Systems Security Engineer (ISSE) L4 * Lorton, VA (http://maps.google.com/maps?q=Lorton+VA+USA) Description Are you looking to take ... next steps in your career as an Information Systems Security Engineer (ISSE)? Let's chat and see... network defense capabilities. As aSenior Information System Security Engineer (ISSE), you will provide expert… more
    Virtual Service Operations (11/09/25)
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  • Information Systems Security

    BAE Systems (Sterling, VA)
    …may be available based on position level and/or job specifics. **Information Systems Security Engineer ( Senior )- ISSE** **115935BR** EEO Career Site Equal ... good communicator/facilitator. Comfortable at all levels from developer to senior staff. + Knowledge of the complex network... senior staff. + Knowledge of the complex network environments involving shared networks and multiple security more
    BAE Systems (11/21/25)
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  • Senior SaaS Security Engineer

    CoStar Realty Information, Inc. (Arlington, VA)
    Senior SaaS Security Engineer Job Description **Overview** CoStar Group (NASDAQ: CSGP) is a leading global provider of commercial and residential real estate ... an invaluable edge in real estate. We're hiring a ** Senior SaaS Security Engineer ** to...for SaaS inventory (shadow IT included), integrating procurement, SSO/IDP, network /DNS/forward proxy, CASB/SSE, SSPM, and expense data. + Define… more
    CoStar Realty Information, Inc. (11/04/25)
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  • Senior Information System Security

    General Dynamics Information Technology (Reston, VA)
    …enterprise information systems and network architectures as an Information System Security Engineer at GDIT. Here, you'll tailor cutting-edge solutions to ... + years of related experience **US Citizenship Required:** Yes **Job Description:** ** Senior ** **Information System Security ** ** Engineer ** Deliver … more
    General Dynamics Information Technology (11/21/25)
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  • Senior Information Security

    Lumen (Richmond, VA)
    …connect the world and shape the future. **The Role** Lumen Technologies is seeking a Senior Information Security Engineer who can help design, engineer , ... experience in Linux system administration, virtualization, configuration, and support within a security context. + Strong background in network design, support,… more
    Lumen (11/15/25)
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  • Information Systems Security

    CGI Technologies and Solutions, Inc. (Arlington, VA)
    **Information Systems Security Engineer (ISSE) - Senior ** **Category:** Cyber Security **Main location:** United States, Virginia, Arlington **Position ... highly collaborative team to deliver state-of-the-art capabilities. The Information System Security Engineer (ISSE) designs, implements, and manages security more
    CGI Technologies and Solutions, Inc. (09/26/25)
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  • Senior Information Systems Security

    GovCIO (Alexandria, VA)
    **Overview** GovCIO is currently hiring a ** Senior ** **Information Systems Security Engineer ** for a program with the US Coast Guard. This position will be ... $185,000.00 /Yr. Submit a referral to this job (https://careers-govcio.icims.com/jobs/7062/ senior -information-systems- security - engineer -%28sme%29/job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-VA-Alexandria_ **ID**… more
    GovCIO (11/07/25)
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  • Senior Security Systems…

    EPAM Systems (Mclean, VA)
    We are seeking a ** Senior Security Systems Engineer ** to lead advanced WiFi performance testing, automation, and network analysis in laboratory ... equipment, and strong programming skills to deliver secure and reliable network solutions. Req# 903161982 **Responsibilities** + Set up and conduct controlled… more
    EPAM Systems (11/04/25)
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